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Finding the Fourth Proportional to 811,502.92, 1,119,907 and 448,920.52

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Solution

The fourth proportional to 811,502.92, 1,119,907 and 448,920.52 is: 619,528.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,502.92 : 1,119,907 = 448,920.52 : x
  2. Step 2: Convert to fraction form
    811,502.92/1,119,907 = 448,920.52/x
  3. Step 3: Cross multiply
    811,502.92x = 1,119,907 × 448,920.52
  4. Step 4: Simplify right side
    811,502.92x = 502,749,232,791.64
  5. Step 5: Solve for x
    x = 502,749,232,791.64/811,502.92
  6. Step 6: Final answer
    x = 619,528.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.